Global energy overview -- Gasification of coal -- Clean liquid fuels from coal -- Coal slurry fuel -- Liquid fuels from natural gas -- Resids -- Liquid fuels from oil sand -- Shale oil from oil shale -- Methanol synthesis from syngas -- Ethanol from corn -- Ethanol from lignocellulosics -- Energy from biomass conversion -- Energy generation from waste sources -- Geothermal energy -- Nuclear energy -- Fuel cells.